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1. WO2016144944 - METHOD OF MAKING AN ELECTRODE STRUCTURE AND A MICROBATTERY CELL

Publication Number WO/2016/144944
Publication Date 15.09.2016
International Application No. PCT/US2016/021342
International Filing Date 08.03.2016
IPC
H01M 4/70 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of, or comprising, active material
64Carriers or collectors
70characterised by shape or form
H01M 4/04 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of, or comprising, active material
04Processes of manufacture in general
H01M 4/76 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of, or comprising, active material
64Carriers or collectors
70characterised by shape or form
76Containers for holding the active material, e.g. tubes, capsules
H01M 4/78 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of, or comprising, active material
64Carriers or collectors
70characterised by shape or form
78Shapes other than plane or cylindrical, e.g. helical
H01M 10/04 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
04Construction or manufacture in general
H01M 10/28 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
24Alkaline accumulators
28Construction or manufacture
CPC
H01M 10/0436
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
04Construction or manufacture in general
0436Small-sized flat cells or batteries for portable equipment
H01M 10/052
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
05Accumulators with non-aqueous electrolyte
052Li-accumulators
H01M 10/0585
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
05Accumulators with non-aqueous electrolyte
058Construction or manufacture
0585of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
H01M 2/1061
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
2Constructional details or processes of manufacture of the non-active parts
10Mountings; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
1016Cabinets, cases, fixing devices, adapters, racks or battery packs
1022for miniature batteries or batteries for portable equipment
1061for cells of prismatic configuration or for sheet-like batteries
H01M 2004/021
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of or comprising active material
021Physical characteristics, e.g. porosity, surface area
H01M 4/0404
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of or comprising active material
04Processes of manufacture in general
0402Methods of deposition of the material
0404by coating on electrode collectors
Applicants
  • PRESIDENT AND FELLOWS OF HARVARD COLLEGE [US]/[US]
Inventors
  • LEWIS, Jennifer, A.
  • AHN, Bok, Yeop
  • MEYITANG, Pierre-Marie, N.
  • WOOD, Robert, J.
Agents
  • RITTNER, Mindy, N.
Priority Data
62/130,04109.03.2015US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD OF MAKING AN ELECTRODE STRUCTURE AND A MICROBATTERY CELL
(FR) PROCÉDÉ DE FABRICATION D'UNE STRUCTURE D'ÉLECTRODE ET CELLULE DE MICROBATTERIE
Abstract
(EN)
An electrode structure for a rechargeable microbattery cell comprises a patterned current collector having a trench therein. The trench comprises a predetermined 2D shape and depth, and an electrode is disposed within the trench. The electrode has the predetermined 2D shape. The trench may comprise a surface roughness of from about 0.001 mm to about 0.1 mm. A method for manufacturing an electrode structure for a rechargeable microbattery cell comprises forming a trench having a predetermined 2D shape and depth in a conductive substrate, thereby creating a patterned current collector. One or more surfaces of the trench may be roughened. The trench is filled with an electrode formulation to form an electrode. An electrode structure comprising the electrode having the predetermined 2D shape in the patterned current collector is thereby created.
(FR)
L'invention concerne une structure d'électrode pour une cellule de microbatterie rechargeable qui comprend un collecteur de courant à motifs ayant une tranchée en son sein. La tranchée comprend une forme en 2D prédéfinie et une profondeur, et une électrode est disposée à l'intérieur de la tranchée. L'électrode a la forme prédéfinie en 2D. La tranchée peut comprendre une rugosité de surface d'environ 0,001 mm à environ 0,1 mm. Un procédé de fabrication d'une structure d'électrode pour une cellule de microbatterie rechargeable comprend la formation d'une tranchée ayant une forme en 2D prédéfinie et une profondeur dans un substrat conducteur, ce qui permet de créer un collecteur de courant à motifs. Une ou plusieurs surfaces de la tranchée peuvent être rendues rugueuses. La tranchée est remplie d'une formulation d'électrode pour former une électrode. Une structure d'électrode comprenant l'électrode ayant la forme en 2D prédéfinie dans le collecteur de courant à motifs est ainsi créée.
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